Book from Project Gutenberg: General Investigations of Curved Surfaces of 1827 and 1825
Translations of the author's 1827 paper "Disquisitiones generales circa superficies curvas," his abstract of it, and his 1825 fragment "Neue allgemeine Untersuchungen über die krummen Flächen."
Gauss's paper of 1827, General investigations of curved surfaces [Commentationes Societatis regiae scientarum gottingensis recentiores, vol. VI. Gottingae, MDCCCXXVIII] -- Gauss's abstract of the paper of 1827 [Göttingische gelehrte anzeigen. November 5, 1827] -- Notes on the paper of 1827 -- Gauss's paper of 1825, New general investigations of curved surfaces [Werke, v. 8, 1901] -- Notes of the paper of 1825 -- Bibliography of the general theory of surfaces.